94548 ZIP Code, Knightsen, CA
94548 is a ZIP code in Knightsen, California in Contra Costa County. It covers 2.3 square miles of land. The closest ZIP codes are 94561, 94511 and 94513. 832 people live here in 259 households. With about 360 people per square mile it is lightly settled, and most homes are owner-occupied (100%). Median household income is $189,653, well above the California median of $99,122.
Quick facts
- Mailing city: Knightsen, CA
- County: Contra Costa County
- Land area: 2.3 sq mi
- Population: 832
- Median household income: $189,653
Key figures
| Measure | Value |
|---|---|
| Residents | 832 |
| Households | 259 |
| Median household income | $189,653 |
| Income per person | $64,991 |
| Median age | 44.2 |
| Homeowners | 100.0% |
| Median home value | $959,900 |
| Median rent | not published |
| Bachelor's degree or higher | 22.3% |
| Average commute (minutes) | 53.2 |
| Households with kids under 18 | 34.0% |
| Moved in the past year | 4.1% |
| Below the poverty line | 9.1% |
| Broadband internet | 85.3% |
| Speak a non-English language at home | 55.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.0% |
| $10–15K | 0.0% |
| $15–25K | 0.0% |
| $25–35K | 0.0% |
| $35–50K | 5.4% |
| $50–75K | 12.4% |
| $75–100K | 0.0% |
| $100–150K | 11.6% |
| $150–200K | 21.6% |
| $200K+ | 49.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.5% |
| 10–19 | 9.9% |
| 20–24 | 6.7% |
| 25–34 | 8.9% |
| 35–44 | 16.3% |
| 45–54 | 25.2% |
| 55–64 | 4.6% |
| 65–74 | 11.2% |
| 75+ | 1.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 69.5% |
| Owned outright | 30.5% |
| Rented | 0.0% |
| Vacant | 0.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 86.9% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 13.1% |
Businesses in 94548
10 business establishments with 60 employees (ZIP Codes Business Patterns 2023).
- Construction: 3
- Administrative and Support and Waste Management and Remediation Services: 3
EDDM carrier routes
See every USPS carrier route in 94548 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 94561 — Oakley city, CA (2.5 mi)
- 94511 — Bethel Island CDP, CA (3.9 mi)
- 94513 — Brentwood city, CA (3.9 mi)
- 94531 — Antioch city, CA (7 mi)
- 94505 — Discovery Bay CDP, CA (7.7 mi)
- 95219 — Stockton city, CA (8.7 mi)
- 94509 — Antioch city, CA (8.9 mi)
- 94514 — Byron CDP, CA (10.3 mi)
Areas that include 94548
- Knightsen, CA ZIP codes — 2 ZIP codes
- Contra Costa County ZIP codes — 47 ZIP codes
- California ZIP code data
Mail every home in 94548
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94548, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 94548 in?
- 94548 is a Knightsen, CA mailing address. By land area, 100% lies inside Knightsen.
- What county is 94548 in?
- 94548 is in Contra Costa County.
- What is the population of 94548?
- About 832 people (±424), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 420.
- What is the median household income in 94548?
- $189,653 (±$93,798), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 94548?
- EDDM2GO's stored route library does not include 94548 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 94548?
- The closest, measured center to center: 94561 (2.5 mi, Oakley), 94511 (3.9 mi, Bethel Island), 94513 (3.9 mi, Brentwood), 94531 (7 mi, Antioch), 94505 (7.7 mi, Discovery Bay) and 95219 (8.7 mi, Stockton).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.